libvhost-user: make it a meson subproject

By making libvhost-user a subproject, check it builds
standalone (without the global QEMU cflags etc).

Note that the library still relies on QEMU include/qemu/atomic.h and
linux_headers/.

Signed-off-by: Marc-André Lureau <[email protected]>
Message-Id: <[email protected]>
Reviewed-by: Michael S. Tsirkin <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>

Author: elmarco

block/export/vhost-user-blk-server.c

@@ -11,7 +11,7 @@
  */
 #include "qemu/osdep.h"
 #include "block/block.h"
-#include "contrib/libvhost-user/libvhost-user.h"
+#include "subprojects/libvhost-user/libvhost-user.h" /* only for the type definitions */
 #include "standard-headers/linux/virtio_blk.h"
 #include "qemu/vhost-user-server.h"
 #include "vhost-user-blk-server.h"

contrib/libvhost-user/meson.build

@@ -1,6 +1,5 @@
 # FIXME: broken on 32-bit architectures
 executable('vhost-user-blk', files('vhost-user-blk.c'),
-           link_with: libvhost_user,
-           dependencies: qemuutil,
+           dependencies: [qemuutil, vhost_user],
            build_by_default: false,
            install: false)

contrib/vhost-user-blk/meson.build

@@ -17,8 +17,7 @@
 
 #include "qemu/osdep.h"
 #include "standard-headers/linux/virtio_blk.h"
-#include "contrib/libvhost-user/libvhost-user-glib.h"
-#include "contrib/libvhost-user/libvhost-user.h"
+#include "libvhost-user-glib.h"
 
 #if defined(__linux__)
 #include <linux/fs.h>

contrib/vhost-user-blk/vhost-user-blk.c

@@ -2,8 +2,7 @@ if 'CONFIG_TOOLS' in config_host and 'CONFIG_VIRGL' in config_host \
     and 'CONFIG_GBM' in config_host and 'CONFIG_LINUX' in config_host \
     and pixman.found()
   executable('vhost-user-gpu', files('vhost-user-gpu.c', 'virgl.c', 'vugbm.c'),
-             link_with: libvhost_user,
-             dependencies: [qemuutil, pixman, gbm, virgl],
+             dependencies: [qemuutil, pixman, gbm, virgl, vhost_user],
              install: true,
              install_dir: get_option('libexecdir'))
 

contrib/vhost-user-gpu/meson.build

@@ -17,7 +17,7 @@
 
 #include "qemu/osdep.h"
 
-#include "contrib/libvhost-user/libvhost-user-glib.h"
+#include "libvhost-user-glib.h"
 #include "standard-headers/linux/virtio_gpu.h"
 
 #include "qemu/queue.h"

contrib/vhost-user-gpu/vugpu.h

@@ -12,8 +12,7 @@
 #include "qemu/iov.h"
 #include "qemu/bswap.h"
 #include "qemu/sockets.h"
-#include "contrib/libvhost-user/libvhost-user.h"
-#include "contrib/libvhost-user/libvhost-user-glib.h"
+#include "libvhost-user-glib.h"
 #include "standard-headers/linux/virtio_input.h"
 #include "qapi/error.h"
 

contrib/vhost-user-input/main.c

@@ -1,5 +1,4 @@
 executable('vhost-user-input', files('main.c'),
-           link_with: libvhost_user,
-           dependencies: qemuutil,
+           dependencies: [qemuutil, vhost_user],
            build_by_default: targetos == 'linux',
            install: false)

contrib/vhost-user-input/meson.build

@@ -1,7 +1,6 @@
 if 'CONFIG_LIBISCSI' in config_host
   executable('vhost-user-scsi', files('vhost-user-scsi.c'),
-             link_with: libvhost_user,
-             dependencies: [qemuutil, libiscsi],
+             dependencies: [qemuutil, libiscsi, vhost_user],
              build_by_default: targetos == 'linux',
              install: false)
 endif

contrib/vhost-user-scsi/meson.build

@@ -15,7 +15,7 @@
 #define inline __attribute__((gnu_inline))  /* required for libiscsi v1.9.0 */
 #include <iscsi/scsi-lowlevel.h>
 #undef inline
-#include "contrib/libvhost-user/libvhost-user-glib.h"
+#include "libvhost-user-glib.h"
 #include "standard-headers/linux/virtio_scsi.h"